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Ibanez AEG10NE: No Audio Output, Tuner Still Works [UPDATED]
blk-guitars
#1 Posted : 6/15/2014 9:31:13 PM

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Audio output doesn't work on my Ibanez AEG10NE-BKF-14-02 with 5AJB01F Battery Box/Jack Combo (2 AA batteries, XLR & 1/4": Image attached below.)

Purchased new in 2008, audio hasn't worked for several years.


--- CONTEXT ---
  • New batteries.

  • Tuner works, although switching with tuner button sometimes creates an audible pop.

  • Audio output works only in the following situations:

    1. Momentary, on insertion of battery pack or insertion of XLR jack.

      That is, hit the strings, and then insert battery pack or XLR jack (and push) and you can hear clear, full sound for about a second.

      This works also with 1/4" jack jiggled just the right way -- sound comes on, but for less time than with XLR jack.

    2. XLR jack, through a mixer with gain pushed all the way up.

      In this situation, background noise is overwhelming, signal is barely audible but registerers on mixer VU meter. Can confirm that the preamp controls (EQ, shape, volume) work in this high gain/high noise context.

      btw, the description in the following post exactly matches what happens: <http://forum.ibanez.com/yaf_postst87317_pin-continuity-on-battery-box-5AJB01F-for-AEG10NE.aspx>

      Quote:
      "I bought my AEG10NE used with an electronics problem. The TRS jack doesn't output any signal, and the XLR jack puts out only the very faintest signal. Actually, when I plugged it into my mixer, I could discern no output at all from the XLR, though the guy I bought it from did briefly demonstrate a super faint (and noisy) signal through his pedals and amp setup. I presume he had his rig cranked to the max."



--- HISTORY ---
As I recall, electronics in this guitar have always been intermittent and problematic. But unplugging/plugging typically made it work, up to a point -- after which, the audio output just stopped working altogether.

I haven't used the guitar for several years because of this problem. I just recently decided to try to revive the guitar because it has some good features and is worth playing ... but having said that, this model is designed to be amplified and the electronics --when working-- are among the model's better features. So it really needs the electronics working to be a fully viable instrument, imho.

Experiences recounted on this forum indicate that such electronics problems are not uncommon with "AE Series" guitars. Definitive answers are of course not always easy to come by.


--- BEST GUESS? ---
I know that (as of June 2014) a 5AJB01F replacement battery box is available from Ibanez for $22 <http://shop.ibanez.com/p/5ajb01f-battery-box-jack-combo-box-2-aa-xlr-1-4>, and I suppose that's a logical place to start. The module is connected by a wiring harness, and replacing the module looks to be an easy job.

But the tuner switch/lack of preamp activation also gives me pause. Would hate to have to replace the entire "SST" preamp section just because switching didn't work, but I suppose that might be the *second thing* to try.


--- ADDITIONAL CLUES/QUESTIONS? ---
Does anyone have additonal input about troubleshooting and logical repair strategy?
(I have a multimeter for measurement but haven't used it in years ...)

Should I just get a new battery box and try that first?

If necessary, is there also a replacement SST preamp section still available for the AEG10NE?
If so, how much does that cost?
I see there is an EQ systems page: <http://shop.ibanez.com/c/parts-accessories_acoustic-guitar-parts_electronics_eq-systems> ...

Thanks!


--- UPDATE, 2014-07-06 ---
As detailed in a post below:

The 'fix' to the issue detailed above, according to one technical forum thread, is a modification of the main circuit board of the SST preamp/EQ module: to apply a "10M resistor from the gate [of a transistor preamp on the circuit board] to +3v to make it switch on and off the way it should."

The aforementioned conclusion is from a forum post at <http://music-electronics-forum.com/t36039/> and is thus far (personally) untested.

Here is a jpg of the main SST circuit board mod:
<http://music-electronics-forum.com/attachments/28068d1395267829-ibanez-sst-preamp-mod.jpg>
Bill@Ibanez
#2 Posted : 6/16/2014 6:50:06 PM
Bill@Ibanez


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Wow!

That was a very thorough analysis! Sorry to hear about your trouble, as well.

I think replacing the output console is the first step. This is one of the least expensive things on this guitar and would be the logical place to start, given that the tuner seems to function correctly. There aren't any other troubleshooting suggestions I would have, so the next step would be to replace the part and see if it works.

If you need the SST preamp section, it is listed on our store here:
http://shop.ibanez.com/p/5aeq43f-acoustic-preamp-sst-eq-w-c-connector

As with any Ibanez part, you can usually order them through an authorized Ibanez dealer, and they would then quote you a price.

Hope this helps,
-Bill
1 user thanked Bill@Ibanez for this useful post.
blk-guitars on 6/16/2014(UTC)
blk-guitars
#3 Posted : 6/16/2014 8:22:28 PM

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Thanks, Bill, for confirming the best-guess "next step" is in replacing the battery/combo input box. Seems to be typical advice in these kinds of situations, esp given the price.

Also, thanks for confirming that the correct preamp/EQ is 5AEQ43F (visually matched and saw that all similar-looking preamps were $164 ... yeah, maybe I'll start with the $22 input section, first!). Hadn't bothered to take out the preamp section this go-around to get the model# off it.

I say "this go-around" because I did remove the EQ section once in order to put some sort of vibration-absorbing plastic or rubber washers around the screws that attach the module to the body, as the whole assembly vibrated when playing the guitar.

I do regret that the electronics on this model have been problematic because when I played it through an amp and it *was* working ... it sounded good. Which is why I suppose it's worth a try at reviving it. It's a relatively unique and useful instrument, esp with a narrower neck than typical classicals.

Thanks again.
blk-guitars
#4 Posted : 6/17/2014 9:33:52 PM

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As of today --2014-06-17, two days after my original post-- the 5AJB01F Battery Box/Jack Combo Box (2 AA batteries, "JB Combo" XLR & 1/4") is no longer listed online at Ibanez "shop" store <http://shop.ibanez.com/p/5ajb01f-battery-box-jack-combo-box-2-aa-xlr-1-4>. Was just about to try to order the part.

I made an inquiry via contact link at the store about expected re-stocking date (hopefully there will be one?).

Any idea about how long it might typically take to get a part such as this?

Thanks.
Bill@Ibanez
#5 Posted : 6/18/2014 6:22:53 PM
Bill@Ibanez


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Sorry for the availability issues!!

I believe we will see those put back up on the website within a week. Hoshino USA(who fulfills that website's orders) is currently out of stock, but will be getting more in shortly. I apologize for the delay!

-Bill
2 users thanked Bill@Ibanez for this useful post.
blk-guitars on 6/19/2014(UTC), Gwince on 6/25/2014(UTC)
blk-guitars
#6 Posted : 6/19/2014 5:48:49 PM

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Thanks, Bill, for the response - no problem with the delay.

[Ibanez store replied to my inquiry, as well; so I appreciate the communication.]

Will keep eyes open for 'restock' and try to order soon after 5AJB01F combo box appears in online catalog.
blk-guitars
#7 Posted : 6/24/2014 6:06:44 PM

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As of Monday 2014-06-23, the item 5AJB01F is back in stock at <http://shop.ibanez.com/p/5ajb01f-battery-box-jack-combo-box-2-aa-xlr-1-4>. Ordered!
blk-guitars
#8 Posted : 6/28/2014 12:28:24 AM

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Quote:
As of Monday 2014-06-23, the item 5AJB01F is back in stock at <http://shop.ibanez.com/p/5ajb01f-battery-box-jack-combo-box-2-aa-xlr-1-4>. Ordered!

... And installed, and audio output still doesn't work. The replacement box evinces the same behavior - tuner works, audio present only briefly on insertion of jack or battery pack.

On to the next step, whatever that is (removing preamp for inspection, to start).
blk-guitars
#9 Posted : 7/6/2014 10:07:40 PM

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A few observations from further research:

---
1. Normal audio output 'fading out' after plugging in --either after 1/2 second, as I have experienced, or after being connected for awhile-- is a *common problem* among owners of SST preamp/EQ modules found in Ibanez AE series guitars.


2. This particular problem is almost certainly a SWITCHING issue, not related to output jacks or pre-amp, per se.

I have replaced the output section (jacks and battery box), with no ostensible improvement in the issue.


3. The switching on/off of audio via tuner button IS involved, although from what I have read, the problem is probably not the switch itself but a circuit board design issue related to the gate terminal of an FET preamp (transistor), which is used to mute output when the tuner is on.

The 'fix' is supposedly to apply a "10M resistor from the gate to +3v to make it switch on and off the way it should."

The aforementioned conclusion is from a forum post at <http://music-electronics-forum.com/t36039/> and is thus far (personally) untested.

Here is a jpg of the main SST circuit board mod:
<http://music-electronics-forum.com/attachments/28068d1395267829-ibanez-sst-preamp-mod.jpg>


4. The other fix is of course to replace the entire pre-amp/EQ module --in this case, part# 5AEQ43F with 'C-connector'-- and hope that the newer/updated design of the main board has permanently addressed the problem experienced by many owners of SST preamps.


5. As mentioned previously, the preamp output when it does work sounds clear and strong. There is definitely NOTHING wrong with the guitar's pre-amplification, per se. So it seems kind of silly to have to spring for a $164 part that basically works already, if a simple resistor can actually address the issue. Remains to be seen, but worth a try.


6. It's kind of amazing, with this many (widely dispersed) reports of this type of issue with the SST preamp that there isn't an official, organized Ibanez FAQ dealing with the problem, as it appears to be so prevalent among owners of Ibanez acoustic-electric guitars.

The intrepid soul mentioned above, who apparently figured out a fix to this problem on his/her own deserves huge credit for the effort, whether or not the fix ultimately 'works.' (Where would we be without user forums, especially ones populated by users with operational technical expertise?)


---
The following Ibanez Forum thread exposes the issue in more detail: definitely worth reading all the way through to get a sense of related reports.

AEQ-SST preamp stopped working. Does any other preamp fit ...
<http://forum.ibanez.com/yaf_postst77182_AEQ-SST-preamp-stopped-working--Does-any-other-preamp-fit.aspx>


---
Here are a few other related threads from the Ibanez Forum, with reports of this type of problem:

Ibanez Acoustic SST Fishman stopped working
<http://forum.ibanez.com/yaf_postst85608_Ibanez-Acoustic-SST-Fishman-stopped-working.aspx>

Ibanez Preamp/tuner not working
<http://forum.ibanez.com/yaf_postst84842_Ibanez-Preamp-tuner-not-working.aspx>

Part Number and $$ for EQ modile for Ibanez SST Fishman?
<http://forum.ibanez.com/yaf_postst87747_Part-Number-and--for-EQ-modile-for-Ibanez-SST-Fishman.aspx>

AEB10E-LG issues
<http://forum.ibanez.com/yaf_postst77087_AEB10E-LG-issues.aspx>
twilli7
#10 Posted : 3/30/2015 10:16:25 PM

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I am so disappointed to read all this. I too have a guitar with the Fishman SST that will tune but will not put out sound. Now I am at the point that I don't know whop to be mad at Ibanez or Fishman. Fishman for producing a product that clearly has a flaw and doing nothing about it. Or Ibanez for not forcing Fishman to do something about it. I have attempted to contact Ibanez twice and to date no reply. I have tried to contact Fishman once but no reply from them either. I have in the nine years of owning this guitar plugged it in twice, both times several years ago. Now when I go to use it for the third time nothing. I do not have the skill set to do the repair of installing the 10M resistor and all the techs I have talked will not even attempt the repair. Their response is that they will only replace the preamp. NOw I understand I have bought a reasonable priced guitar, but hearing the replacement is half the cost of the original purchase price depresses me. I thank all of you for the great information.
blk-guitars
#11 Posted : 3/31/2015 6:06:43 PM

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Yes, it's disappointing.

My primary response to the situation will continue to be the close examination of future purchases of 'related' products (that is, not likely to happen), until such time there is movement on the issue from the expected sources -- and that not having happened thus far seems unlikely to happen in the future.

---
fwiw, I haven't yet attempted to solder the resistor myself (supposed fix).

Another possibility is to try to contact the original poster of the online forum in which the 'fix' was posted -- not an Ibanez forum: <http://music-electronics-forum.com/t36039/>.

As of 2015-03-31, I see there are several updated posts in the Music Electronics forum on this issue, since I last posted to the Ibanez forum on the topic ... including another person who tried the fix and it worked (but apparently may have introduced a ground hum); and the original poster saying that a subsequent repair of another guitar required replacing an additional resistor, as well.

btw. there is a tip in Music Electronics forum on soldering technique for the 10 Mohm resistor. It looks doable for those with soldering skills and a fine tip on soldering iron -- not sure what there is to lose, anyway, since the board doesn't currently work for sound pick up and amplification, beyond tuning.

But, for the time being, I have removed the electronics from the AEG10NE and use the missing preamp hole as an additional sound hole ... monitoring from top of body. :^) Which helps a little with amplification of the guitar, at least for practicing, as it is has very little natural acoustic amplification on its own, thus the need for the piezo transducer.

All in all, it's not a satisfying conclusion, although someday it will be useful to pick this up again and try to get it working -- thanks for reminding me!
twilli7
#12 Posted : 4/7/2015 10:26:52 PM

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what a BS response. The one thing I do know I will not buy another Ibanez guitar. I was looking at the AEG10NIITNG because of the narrower neck, but I will definitely be looking is a different direction now. The AE10NE that I have now has been an endless series of failures including two braces on the top came unglued, both sides of the tuner keys haves failed, and now the electronics. Such a shame, it has a nice sound for being junk. Another sad thing is most acoustic guitars out there have Fishman electronics and from what I have been reading is not a selling point.
twilli7
#13 Posted : 4/7/2015 10:29:45 PM

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I did get a response from Fishman about this problem: here is their response.
-- Fishman Support --



A customer support staff member has replied to your support request, #383266 with the following response:

Hi Tony,

The AEQ and SST preamps are actually owned by Ibanez. They use our under saddle pickup elements which is why they say “Fishman Equipped”. That said, if you’re looking for any hardware for the preamp assembly, you’d want to contact Ibanez and see if they have parts available.

Thanks, Derek

Derek Alves | Customer Support Representative Fishman Acoustic Amplification dalves@fishman.com www.fishman.com
yato
#14 Posted : 7/6/2017 7:49:45 PM

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I purchased a new (as in boxed) aeb10e bass recently, and it turned out to have the problem described.
The sound died after a second or so after plugging batteries.The company stopped trading so I was left with the bass ...

I read the pages on the resistor mod on the other forum, which tells you to swap a 47k resistor. Skip the 10M one.

I checked that it would work first by shorting the fet as described there .. then replaced the 47k resistor with 4.7k resistor, and the bass works fine. Just wanted to confirm the mod here.

http://music-electronics-forum.com/t36039/
RIX
#15 Posted : 11/17/2017 11:16:16 PM
RIX


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You might want to check out my post of issues I found while troubleshooting the SST and SRT preamps.

Below is a link to my post:

http://forum.ibanez.com/yaf_pos...ttery-holder-Issues.aspx
RIX
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